Gregory R. Chemnitz

Companies

• MaterionGeneral counsel May 5, 2011 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Materion MTRN11,278 shares²$2.7M at $243.48Mar 10, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Mar 9, 2026Shares withheld for tax 5 shares at $144.19 of Materion²
• Mar 6, 2026Granted 5 shares of Materion²
• Mar 3, 2026Sold 3,434 shares at $157.26 of Materion³
• Mar 3, 2026Sold 1,083 shares at $157.52 of Materion³
• Mar 3, 2026Shares withheld for tax 4,445 shares at $157.26 of Materion³
• Mar 3, 2026Exercised options 1,017 shares at $87.36 of Materion³
• Mar 3, 2026Exercised options 1,471 shares at $135.58 of Materion³
• Mar 3, 2026Exercised options 3,040 shares at $113.28 of Materion³
• Mar 2, 2026Shares withheld for tax 1,211 shares at $166.59 of Materion³
• Mar 1, 2026Exercised options 2,003 shares of Materion³
• Feb 17, 2026Sold 4,000 shares at $157.09 of Materion⁴
• Feb 12, 2026Granted 2,196 shares of Materion⁵
• Nov 4, 2025Sold 864 shares at $113.23 of Materion⁶
• Nov 4, 2025Shares withheld for tax 1,796 shares at $113.13 of Materion⁶
• Nov 4, 2025Exercised options 2,254 shares at $80.85 of Materion⁶
• Nov 4, 2025Shares withheld for tax 1,053 shares at $112.96 of Materion⁶
• Nov 4, 2025Exercised options 1,459 shares at $68.82 of Materion⁶
• Aug 4, 2025Sold 2,082 shares at $105.40 of Materion⁷
• Aug 4, 2025Sold 918 shares at $104.65 of Materion⁷
• May 5, 2025Sold 1 shares at $83.33 of Materion⁸
• May 5, 2025Sold 130 shares at $81.70 of Materion⁸
• May 5, 2025Sold 939 shares at $80.86 of Materion⁸
• May 5, 2025Sold 930 shares at $79.85 of Materion⁸
• Mar 10, 2025Shares withheld for tax 6 shares at $88.77 of Materion⁹
• Mar 7, 2025Granted 8 shares of Materion⁹